HartreeFock

class HartreeFock(num_orbitals, num_particles, qubit_mapping='parity', two_qubit_reduction=True, sq_list=None)

Bases: qiskit.aqua.components.initial_states.initial_state.InitialState

A Hartree-Fock initial state.

Parameters

• num_orbitals (int) – number of spin orbitals, has a min. value of 1.

• num_particles (Union[List[int], int]) – number of particles, if it is a list, the first number is alpha and the second number if beta.

• qubit_mapping (str) – mapping type for qubit operator

• two_qubit_reduction (bool) – flag indicating whether or not two qubit is reduced

• sq_list (Optional[List[int]]) – position of the single-qubit operators that anticommute with the cliffords

Raises

• ValueError – wrong setting in num_particles and num_orbitals.

• ValueError – wrong setting for computed num_qubits and supplied num_qubits.

Methods

construct_circuit

Construct the statevector of desired initial state.

Attributes

bitstr

Getter of the bit string represented the statevector.